Fix cyg_portable.sh for newest version of Cygwin64;
Fix p25_frequency process_channel_to_freq to allow a channel value of (0000);
Fix Event Format Nit and add EOT Delay on CC for EDACS/PV;
Prepare to Seperate Ncurses Code and Event History Code into seperate .c files; Move common items to a .h file;
Move event history code to dsd_events.c; Move AFS code to edacs-fme.c; Move beeper code to dsd_audio2.c